%Regressors & \multicolumn{3}{c}{Model 1} & \multicolumn{3}{c}{Model 2}\\
%
%    & Coefficient & Lower limit & Upper Limit
%    & Coefficient & Lower limit & Upper Limit  \\

{
%\scriptsize
%\sffamily
\ttfamily
 \begin{tabular}{llllll}
 \hline\noalign{\smallskip} 
&& \multicolumn{1}{l}{Baseline} & \multicolumn{1}{l}{PATATRAS}&\multicolumn{1}{l}{Oracular}&\multicolumn{1}{l}{Oracular(PQ)}\\ 
&&                              &                      & $\tau=0$                 & $\tau=1$             \\
 \noalign{\smallskip} 
 \hline
\noalign{\smallskip} 
$\mathit{LM}$ &\vtop{\hbox{\strut MAP}\hbox{\strut Recall}} 
& \vtop{\hbox{\strut 0.092}\hbox{\strut 0.326}}
& \vtop{\hbox{\strut 0.27}\hbox{\strut N/A}} 
& \vtop{\hbox{\strut \bfseries 0.368}\hbox{\strut 0.448}} 
& \vtop{\hbox{\strut \bfseries 0.314}\hbox{\strut 0.456}}\\ \hline

$\mathit{BM25}$&\vtop{\hbox{\strut MAP}\hbox{\strut Recall}} 
& \vtop{\hbox{\strut 0.100}\hbox{\strut 0.338}}
& \vtop{\hbox{\strut 0.27}\hbox{\strut N/A}} 
& \vtop{\hbox{\strut \bfseries 0.376}\hbox{\strut 0.451}} 
& \vtop{\hbox{\strut \bfseries 0.321}\hbox{\strut 0.461}}\\ \hline

%\bottomrule 

 \end{tabular} 
 
}
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